* Latitude and longitude are geographic coordinates: They describe a location on the Earth's surface.
* A nickel is an object: It doesn't have a fixed position on the Earth's surface like a city or a landmark.
Think of it this way: If you were to drop a nickel on the ground, it would have a specific location at that moment. But that location could change the next time you pick it up.
Let me know if you have any other questions!